Question

Which formula is used to find the circumference of a circle when the radius is given?(1 point) What is the correct answer?
Answer
That is not an option.
It’s either:
C= pi 2 r
C= pi 2 d
C= pi r
C=pi r^2
Answered by GPT 3.5
The formula used to find the circumference of a circle when the radius is given is:

Circumference = 2πr

where r is the radius of the circle.
Answered by GPT 3.5
The correct formula to find the circumference of a circle when the radius is given is:

C = 2πr